I have been a happy owner of my HP G2 15 laptop for a good 6 years. I purchased it with the “Z-Drive Turbo” contracted drives from Sandisk’s A110 series. Mine was the 256gb model.
However, I recently purchased Toshiba’s new RC100 drives, a 240gb M.2 2242 NVMe 1.2.1. I guess I only thought PCIe 3.0 x4 was back compatible with PCIe 2.0, and didn’t cross my mind that the HP G2 15 BIOS does not support NVMe based M.2?
I installed the RC100 and I was able to format it, was recognized by my ZBook as I was prepping a new Windows 10 install. The RC100 copied all Windows 10 files ready for installation, but when it came time to reboot the Zbook doesn’t see the Windows 10 boot file protocol and states there’s no hard drive.
Is this all due to NVMe protocol that isn’t supported by motherboard, regardless if mobo recognizes and was able to format the new RC100? Does HP need to release a BIOS update?
However, I recently purchased Toshiba’s new RC100 drives, a 240gb M.2 2242 NVMe 1.2.1. I guess I only thought PCIe 3.0 x4 was back compatible with PCIe 2.0, and didn’t cross my mind that the HP G2 15 BIOS does not support NVMe based M.2?
I installed the RC100 and I was able to format it, was recognized by my ZBook as I was prepping a new Windows 10 install. The RC100 copied all Windows 10 files ready for installation, but when it came time to reboot the Zbook doesn’t see the Windows 10 boot file protocol and states there’s no hard drive.
Is this all due to NVMe protocol that isn’t supported by motherboard, regardless if mobo recognizes and was able to format the new RC100? Does HP need to release a BIOS update?

